Halloween is the time to let your creative goblins go wild.
Today, I created from black paper cocktail napkins. They've taken over the house! Each napkin makes 6 bats, so one package is plenty. The napkins are not quite opaque, creating a haunting effect. You could substitute black construction paper.
Caution: You may have to call pest control...
1 package black cocktail napkins
bat pattern (1/2 of bat shape... or you can freestyle it with the scissors for a less uniform look)
scotch tape/adhesive dots
big, heavy vase (filled with water or sand if branches are too heavy)
Find folded side of napkin and draw pattern along that line. Cut along pattern line. Once cut, carefully unfold and separate bat silhouettes. For a hanging bat, bring two wings in towards body and secure with adhesive dot. Use tape or adhesive dots to arrange on dried branches in a vase or let them fly freely on walls, furniture, windows...